74005161 has 4 divisors (see below), whose sum is σ = 98673552. Its totient is φ = 49336772.

The previous prime is 74005157. The next prime is 74005177. The reversal of 74005161 is 16150047.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74005161 - 2² = 74005157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74005111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12334191 + ... + 12334196.

It is an arithmetic number, because the mean of its divisors is an integer number (24668388).

Almost surely, 2^74005161 is an apocalyptic number.

It is an amenable number.

74005161 is a deficient number, since it is larger than the sum of its proper divisors (24668391).

74005161 is a wasteful number, since it uses less digits than its factorization.

74005161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24668390.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 74005161 is about 8602.6252388442. The cubic root of 74005161 is about 419.8434053406.

It can be divided in two parts, 7400 and 5161, that added together give a triangular number (12561 = T₁₅₈).

The spelling of 74005161 in words is "seventy-four million, five thousand, one hundred sixty-one".